Choco, Ed, and Alf are all killed in the gigantic gun fight finale.
Hollywood kid, turned model, turned bounty hunter Domino Harvey (Keira Knightley) is questioned by the FBI but inexplicably, neither she nor the BMV worker who set up the scam to pay for her daughter's operation are arrested for the deaths/robbery/kidnappings etc. that occurred.
Domino patches things up with her mother, finds vindication in having helped to save the little girl's life, and retires from bounty hunting.
Thanks Mary C!